CN103111371A - Electrostatic dust collection device of thermal power plant and installation method of device - Google Patents
Electrostatic dust collection device of thermal power plant and installation method of device Download PDFInfo
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- CN103111371A CN103111371A CN2013100351516A CN201310035151A CN103111371A CN 103111371 A CN103111371 A CN 103111371A CN 2013100351516 A CN2013100351516 A CN 2013100351516A CN 201310035151 A CN201310035151 A CN 201310035151A CN 103111371 A CN103111371 A CN 103111371A
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Abstract
The invention discloses an electrostatic dust collection device of a thermal power plant, which is used for carrying out electrostatic removal on gypsum particles and ultra-fine dust in desulfuration smoke of the thermal power plant. The electrostatic dust collection device is provided with a shell, wherein the shell is internally provided with an anode device and cathode devices for electrostatic dust collection; the anode device is of a honeycomb structure in which fiber cloth made from flame-retardant polymerization polyester is divided into a plurality of square holes; each square hole is communicated in an up-down manner and is provided with a cathode device penetrating through the square hole; the anode device has conductivity as being soaked in water and is connected with the ground; and the cathode devices are communicated with a negative pole of a constant current power supply. The invention also provides an installation method of the electrostatic dust collection device. The electrostatic dust collection device provided by the invention is suitable for removal of gypsum and ultra-fine dust carried by smoke of the large-scale thermal power plant, and has the characteristics of compact structure, good removing effect, stability in operation, and simplicity in maintenance.
Description
Technical field
The invention belongs to subparticle gas solid separation field of engineering technology.Be specifically related to a kind of thermal power plant electrostatic precipitator and installation method thereof, it can be used for, and in the desulfurization fume of large-size thermal power plant, the static of gypsum particle and ultrafine dust removes.
Background technology
The thermal power plant generated energy accounts for 70% of whole generated energy.And a lot of power plant units desulphurization systems do not arrange gas-gas heat exchanger (GGH), and the smoke stack emission flue gas is saturated wet flue gas, approximately 50 ℃ of temperature, chimney of electric plant is discharged the plume even grey that is white in color, transparency extreme difference, power plant surrounding area often descend slowly and lightly white calcium plaster drip, cause serious pollution.Prior art usually adopts at the desulfurizing tower top and installs mechanical demister additional, to carrying gypsum, certain removal effect is arranged, but mechanical demister long-play ubiquity harden, clogging, can't steady in a long-term move, cause the little droplet of gypsum slurries to enter atmosphere with fume emission.And routine intravenous electrostatic precipitator processing speed is at 0.8-1.2m/s, and ability and the efficient of processing gas are very low, and equipment volume is huge, is not suitable with in large-size thermal power plant flue gas deep purifying system to use.
About thermal power plant's electrostatic precipitator, at CN201524521U, in CN201676752U and CN201711219U, its principle is all described in detail, but the anode construction and the cathode construction that consist of its concrete structure are not all elaborated, very simple, although provided some accompanying drawings in these prior aries, be difficult to its concrete structure of the imagination, and basic just without any description for the installation method of the each several part of electrostatic precipitator.
Disclose a kind of cathode ray for wet-type electrostatic defroster in CN201040262Y, can be used for the static demist of thermal power plant.The background technology of the prior art mentions that partly the cathode line dentalation discharge effect that existing electrostatic precipitator uses is not good, easily damage, therefore a kind of upper canned paragraph that has is provided, the cathode line of middle demist section and lower canned paragraph, wherein, middle demist section is continuous stepped tooth, the tooth root of the stepped tooth keel that go directly, and also the stepped tooth of both sides also will setting straggly.From the disclosed content of above-mentioned prior art, this cathode line structure very complex, the stepped tooth straggly that especially middle demist section arranges can only be made by the mode of casting, and manufacturing and installation difficulty can be quite large.And the tooth root of the stepped tooth of through keel part is relatively tiny, and structural strength is not high, is easy in use to cause keel to break and exposes steel wire wherein, thereby cause electrochemical corrosion.Particularly when mounted cathode line is twisted in spiral situation, between the cathode line of three sections layouts, and the stepped tooth part of middle demist section, all be easy to not cause keel to break because structural strength is not high.
The fabric dust collecting electrode square tube that relates in CN101670313A belongs to the anode construction of thermal power plant's electrostatic precipitator, but only has word in above-mentioned prior art and without accompanying drawing, associated description is also very simple, and those skilled in the art can't realize this anode construction on the basis of above-mentioned prior art on the basis that does not spend performing creative labour.
In a word, above-mentioned prior art does not all provide and can although each file emphasis is different, be difficult to piece together out a whole set of clearly structure for practical complete thermal power plant's electrostatic precipitator yet, does not provide actual installation method simultaneously yet.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of thermal power plant electrostatic precipitator and installation method thereof, to reduce or to avoid problem noted earlier.
Specifically, the purpose of this invention is to provide a kind of large-size thermal power plant that is suitable for and be used for flue gas and carry a kind of thermal power plant electrostatic precipitator of the removal of gypsum and ultrafine dust, this device have compact conformation, removal effect good, stable, safeguard simple characteristics.
for solving the problems of the technologies described above, the present invention proposes a kind of thermal power plant electrostatic precipitator, being used for the desulfurization fume gypsum particle of thermal power plant and the static of ultrafine dust removes, described thermal power plant electrostatic precipitator has a housing, anode assembly and cathode assembly for electrostatic precipitation are installed in described housing, described anode assembly is square, be arranged in the described housing that is square equally, the fiber cloth that described anode assembly is made by fire-retardant polymerization terylene is separated into the honeycomb with a plurality of square holes, each described square hole communicates up and down, be furnished with the described cathode assembly of a perforation in each square hole, described anode assembly infiltrates by current and possesses conductive capability, and be connected with the earth, the negative pole conducting of described cathode assembly and constant-current supply, described anode assembly has by square steel and is welded into the upper bracket of groined type shape and the lower bracket that channel-section steel is welded into the groined type shape, is formed with the square hole of a plurality of up and down correspondence between the square steel of described upper bracket and the channel-section steel of lower bracket, between described upper bracket and described lower bracket, position along described square steel and channel-section steel place, form honeycomb by fiber cloth around described square hole, the square steel of described upper bracket forms the water channel of perforation, and the bottom even of described water channel is distributed with the water injection hole that makes described fiber cloth infiltrate conduction.
Preferably, each square steel between described upper bracket and described lower bracket and the binding site of channel-section steel, be provided with a vertical supporting rod that supports described fiber cloth, described vertical supporting rod is evenly distributed with four draw-in grooves along its length direction, the both sides of described fiber cloth are stuck in the draw-in groove of two corresponding vertical supporting rods, and described vertical supporting rod is made by glass fibre.
Preferably, the both sides of described fiber cloth are provided with a card rope, and described fiber cloth is stuck in described draw-in groove by described card rope is passed described draw-in groove.
Preferably, the inside dimensions of described draw-in groove is greater than opening size, the both sides of described fiber cloth are sewed with the rope sling that passes freely through for described card rope, and the diameter of described card rope is greater than the opening size of described draw-in groove, and the diameter after the described rope sling of described card rope parcel is less than the inside dimensions of described draw-in groove.
Preferably, the wire that described cathode assembly is wrapped in described discharge sheet by the discharge sheet that forms of casting with when casting forms, the both sides of the edge of described discharge sheet have a plurality of continuous prickle teeth, described prickle tooth forms by the semi-circular portion of excising along the edge punching press of described discharge sheet, the diameter of described semi-circular portion is 50-55mm, and the Breadth Maximum W of described discharge sheet is 100-120mm.
Preferably, described wire is that diameter is the stainless steel wire of 2-3mm, and described discharge sheet is made by lead-antimony alloy.
Preferably, the surface of exposing the part of described discharge sheet, described wire two ends also is enclosed with one deck lead-antimony alloy.
The present invention also provides the installation method of a kind of above-mentioned thermal power plant electrostatic precipitator, and described installation method comprises the steps:
The lower bracket of described anode assembly is arranged in described housing, by screw, alignment pin is arranged on channel-section steel on described lower bracket;
The vertical supporting rod of described anode assembly is installed on described alignment pin, and with the installation site of the draw-in groove aligned fibers cloth on described vertical supporting rod;
The top that the upper bracket position correspondence of described anode assembly is arranged at described vertical supporting rod is aimed at, and by set bolt, described vertical supporting rod is connected on described upper bracket; The upper support bar that supports described fiber cloth is set at described upper bracket downside;
Card rope is passed the rope sling of described fiber cloth, card is restricted pass the draw-in groove of described vertical supporting rod, then pull described fiber cloth along described card rope, described fiber cloth both sides are firmly snapped onto in described draw-in groove;
Make the upper end of described fiber cloth walk around described upper support bar, and fixed by snap; Upside in described lower bracket arranges the lower support bar that supports described fiber cloth; Make the lower end of described fiber cloth walk around described lower support bar and strain described fiber cloth, then fixed by snap;
The described cathode assembly of a perforation is set in each square hole that described fiber cloth is separated into;
Described anode assembly is connected with the earth, makes the negative pole conducting of described cathode assembly and constant-current supply.
Preferably, above-mentioned installation method further comprises the steps, after being arranged at described cathode assembly in described anode assembly, the upper end of described cathode assembly is fixed, and the 2-3 circle is twisted around its axis in the lower end, makes described cathode assembly twist into spirality.
The invention provides a kind of for practical complete thermal power plant's electrostatic precipitator, and provided clearly installation method, described static is suitable for large-size thermal power plant and is used for flue gas and carries gypsum and remove, this device have compact conformation, removal effect good, stable, safeguard simple characteristics.
Description of drawings
The following drawings only is intended to the present invention is done and schematically illustrates and explain, not delimit the scope of the invention.Wherein,
What Fig. 1 showed is the desulfurizer of thermal power plant and the structural representation of electrostatic precipitator;
What Fig. 2 showed is according to the thermal power plant's electrostatic precipitation anode assembly that is used for electrostatic precipitator of a specific embodiment of the present invention and the structural representation of thermal power plant's electrostatic precipitation cathode assembly;
Fig. 3 shows is structural representation according to the cathode assembly of a specific embodiment of the present invention;
Fig. 4 shows is decomposing state structural representation according to the anode assembly of a specific embodiment of the present invention.
The specific embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention.Wherein, identical parts adopt identical label.
What Fig. 1 showed is the desulfurizer of thermal power plant and the structural representation of electrostatic precipitator, as shown in the figure, the flue gas of thermal power plant is through after desulfurizer 1, be transported to the upper entrance 31 of electrostatic precipitator 3 via pipeline 2, gas after processing by electrostatic precipitator 3 is discharged by exhaust outlet 32, and can discharge from electrostatic precipitator 3 below solid discharge mouths 33 by the solid after electrostatic precipitation.
Electrostatic precipitator shown in Fig. 13 has a housing 34, and anode assembly and cathode assembly for electrostatic precipitation are installed in housing 34.Principle about electrostatic precipitator can referring to CN201524521U, CN201676752U, CN201711219U and CN101670313A, be not described in detail at this.Emphasis of the present invention namely is the architecture advances to cathode assembly and the anode assembly of electrostatic precipitator, can be with reference to the description of above-mentioned prior art as for the mounting connection structure of cathode assembly and anode assembly and housing 34.
What Fig. 2 showed is according to the thermal power plant's electrostatic precipitation anode assembly 4 that is used for electrostatic precipitator 3 of a specific embodiment of the present invention and the structural representation of thermal power plant's electrostatic precipitation cathode assembly 5, wherein, anode assembly 4 is square generally, is arranged in the housing (not showing in Fig. 2) that is square equally.Anode assembly 4 is separated into the honeycomb with a plurality of square holes 40 by fiber cloth, each square hole 40 of described square hole shape honeycomb communicates up and down, arranges the cathode assembly 5 of a perforation in each square hole 40.Anode assembly 4 infiltrates by current and possesses conductive capability, and is connected with the earth.Cathode assembly 5 upper and lower sides respectively with the negative pole conducting of constant-current supply.
Fig. 3 shows is structural representation according to the cathode assembly 5 of a specific embodiment of the present invention.Fig. 4 shows is decomposing state structural representation according to the anode assembly 4 of a specific embodiment of the present invention.
At first target device 5 is elaborated, as shown in Figure 3, can be used for according to a kind of thermal power plant of the present invention electrostatic precipitation cathode assembly 5 that in the desulfurization fume of thermal power plant, the static of gypsum particle and ultrafine dust removes, wherein, the discharge sheet 51 that described cathode assembly 5 is formed by casting and the wire 52 that is wrapped in described discharge sheet 51 when casting form, the both sides of the edge of described discharge sheet 51 have a plurality of continuous prickle teeth 53, and described prickle tooth 53 forms by the semi-circular portion 54 of excising along the edge punching press of described discharge sheet 51.
In a specific embodiment, the diameter of described semi-circular portion 54 is 50-55mm, and the Breadth Maximum W of described discharge sheet 51 is 100-120mm, and thickness is 4-8mm.
Therefore, cathode assembly 5 of the present invention is in manufacture process, mode by casting formed discharge sheet 51 before this, and coated metal silk 52 therein simultaneously, then the mode by punching press forms prickle tooth 53, and the prickle tooth 53 that is used for discharge that therefore obtains is more far better than the precision of simple casting.
On the other hand, prickle tooth 53 of the present invention is when forming, and what cut away is semi-circular portion 54, therefore than the shape that is easier to hold processing.
And, after cutting away described semi-circular portion 54, the remaining width of described discharge sheet 51 is suitable with the diameter of the semi-circular portion 54 that cuts away, thereby can be in the process of discharge, form continuous and stable electric arc between adjacent prickle tooth 53, thereby can form more stable electrostatic field, dust removing effects is better.
In a specific embodiment, the width at the crown top of described prickle tooth 53 is less than 1mm.The effect that limits like this is in order further to improve discharging efficiency, to guarantee that namely the semi-circular portion 54 that cuts away is the tangent arrangements of continuous edge along discharge sheet 51, the crown top width that guarantees each prickle tooth 53 is consistent, thereby can obtain more uniform and stable electric field.
Further, described wire 52 is the acid metal silk of 2-3mm for diameter.Described acid metal silk can be stainless steel wire, and described discharge sheet 51 is made by lead-antimony alloy.For improving the corrosion resistance of wire 52, avoid simultaneously discharging and form electrochemical reaction between sheet 51 and wire 52 in long-term corrosive atmosphere, preferably, the surface of exposing the part of described discharge sheet 51, described wire 52 two ends also is enclosed with one deck lead-antimony alloy.
When in use, after cathode assembly 5 is put in anode assembly 4, also need cathode assembly 5 is twisted into spirality, can evenly distribute on three-dimensional so that each of cathode assembly 5 is used for the prickle tooth 53 of discharge, thereby can further obtain more uniform and stable electric field.Specifically, after namely being arranged at described cathode assembly in anode assembly, the upper end of described cathode assembly is fixed, the 2-3 circle is twisted around its axis in the lower end, makes described cathode assembly twist into spirality.
Cathode assembly of the present invention forms the discharge sheet by the mode of casting, then the mode by punching press forms the prickle tooth, therefore the prickle tooth that is used for discharge that obtains is more far better than the precision of simple casting, thereby can be in the process of discharge, form continuous and stable electric arc between adjacent prickle tooth, thereby can form more stable electrostatic field, dust removing effects is better.
Following antianode device 4 is elaborated, and as shown in Figure 4, what wherein show is decomposing state structural representation according to the anode assembly 4 of a specific embodiment of the present invention, and what wherein show is that decomposition view is amplified in the part of structure shown in Fig. 2 lower right corner.
As shown in the figure, a kind of thermal power plant electrostatic precipitation anode assembly 4 according to a specific embodiment of the present invention, its static that can be used for the ultrafine dust of gypsum particle and PM2.5 and so in the desulfurization fume of thermal power plant removes, wherein, described anode assembly 4 has by square steel 401 and is welded into the upper bracket 41 of groined type shape and the lower bracket 42 that channel-section steel 400 is welded into the groined type shape, is formed with the square hole 40 of a plurality of up and down correspondence between the square steel 401 of described upper bracket 41 and the channel-section steel 400 of lower bracket 42; Between described upper bracket 41 and described lower bracket 42, position along described square steel 401 and channel-section steel 400 places, form honeycomb by fiber cloth 43 around described square hole 40, the square steel 401 of described upper bracket 41 forms the water channel 411 of perforation, and the bottom even of described water channel 411 is distributed with and makes described fiber cloth 43 infiltrate the water injection hole 412 of conduction.In a specific embodiment, described fiber cloth 43 can be made by fire-retardant polymerization terylene, so, in the electrostatic field of electrostatic precipitator 3 in the high temperature discharge environment, can avoid fiber cloth 43 to be lighted on fire, and polymerization terylene itself does not possess electric conductivity, only just conduct electricity after current infiltrate, adopt conductive fiber as fiber cloth than prior art, cost is lower.
Show for clear, in figure, fiber cloth 43 has only specifically shown close observer's one side, and the fiber cloth 43 at side and the back side has adopted simplified painting, only shows the profile of a cardinal principle, certainly, does not affect like this those skilled in the art's understanding.In addition, should be noted in the discussion above that water injection hole 412 is distributed in the formed water channel 411 of square steel 401 of upper bracket 41, so just can make the water that injects water channel 411 can trickle from top to bottom and infiltrate fiber cloth 43 under Action of Gravity Field.The water channel 421 that lower bracket 42 has can be collected the water that flows down from fiber cloth 43, and the hole 422 in the water channel 421 of lower bracket 42 can be discharged the water that washes away in the solid matter that gets off, the gypsum liquid that is beneficial to adsorb can be gathered in the water channel 421 of lower bracket 42, and the secondary that is beneficial to foreign material in removing and anti-sealing carries.
In a specific embodiment, each square steel 401 between upper bracket 41 and lower bracket 42 and the binding site of channel-section steel 400, as shown in the figure, be provided with a vertical supporting rod 44 that supports described fiber cloth 43, described vertical supporting rod 44 is evenly distributed with four draw-in grooves 441 along its length direction, and the both sides of described fiber cloth 43 are stuck in the draw-in groove 441 of two corresponding vertical supporting rods 44.For avoiding corrosion, reduce costs and reduce construction weight, in a specific embodiment, described vertical supporting rod 44 can be made by glass fibre.
Further, the both sides of fiber cloth 43 are provided with a card rope 431, and described fiber cloth 43 is stuck in described draw-in groove 441 by described card rope 431 is passed described draw-in groove 441.
Specifically, the inside dimensions of described draw-in groove 441 is greater than opening size, the both sides of described fiber cloth 43 are sewed with the rope sling 432 that passes freely through for described card rope 431, and the diameter after the described card rope 431 described rope slings 432 of parcel is greater than the opening size of described draw-in groove 441 and less than the inside dimensions of described draw-in groove 441.So, after card rope 431 passes rope sling 432, further will block rope 431 and pass draw-in groove 441, then pull fiber cloth 43 along card rope 431, just whole fiber cloth 43 can be snapped onto in draw-in groove 441 securely, make the part of joining around four fiber cloths 43 of square hole 40 without any the gap, be unlikely in the process of dedusting air-flow and laterally run helter-skelter, affect dust removing effects.On the other hand, because the fiber cloth 43 that infiltrates is that anode as electrostatic precipitation uses in the operation process of equipment, if there is the gap each other in fiber cloth 43, will certainly make electrostatic field inhomogeneous, make dust removing effects have a greatly reduced quality.In fact, for fear of in installation process, card rope 431 passes separately in the process of draw-in groove 441 to deviate from from draw-in groove 441, the diameter of card rope 431 equally also should be greater than the opening size of draw-in groove 441, certainly, because the sizes of card rope 431 parcel rope slings 432 are less than the inside dimensions of draw-in groove 441, therefore, the diameter of card rope 431 is also less than the inside dimensions of draw-in groove 441 certainly.
For ease of installing, an end of vertical supporting rod 44 is provided with the threaded mounting hole (not shown), and the other end is provided with locating hole 442; Corresponding to being provided with alignment pin 443 on the square steel of the position at locating hole 442 places of described vertical supporting rod 44 or channel-section steel, corresponding to being provided with set bolt 444 on the square steel of the position at the threaded mounting hole place of described vertical supporting rod 44 or channel-section steel.As shown in the figure, alignment pin 443 is fixed on described square steel 401 or channel-section steel 400 by screw 445.
In the present invention, one end adopts alignment pin 443, and the other end adopts set bolt 444, and an end of alignment pin 443 can painstakingly and freely rotate, that end of alignment pin 443 is rotated, and the set bolt 444 of the other end can keep tight condition.in addition, for the facility of making, in the present invention, alignment pin 443 is fixed on square steel 401 or channel-section steel 400 by screw 445, namely the installation end at alignment pin 443 has the screw corresponding with screw 445, screw 445 is screwed in the screw of alignment pin 443 after passing installing hole on square steel 401 or channel-section steel 400, thereby alignment pin 443 is fixed on square steel 401 or channel-section steel 400, arrange like this and can avoid on the one hand adopting welding in installation process alignment pin 443 is fixed on square steel 401 or channel-section steel 400, on the other hand can be so that adjust in installation process.Because whole device height is very large, usually more than 10 meters, therefore adopt the welding meeting cumbersome.
After fiber cloth 43 had been separated to form honeycomb by said structure, the upper and lower side of fiber cloth 43 also needed further to fix, even up.In a specific embodiment, the downside of upper bracket 41 is provided with the upper support bar 435 of the upper end of supporting described fiber cloth 43, and the upside correspondence of described lower bracket 42 is provided with the lower support bar 436 of the lower end of supporting described fiber cloth 43.
The upper and lower side of described fiber cloth is walked around respectively described upper support bar 435 and described lower support bar 436, is fixed on described upper support bar 435 and described lower support bar 436 by buckle 437.The upper support bar 435 that schematically shows in figure and lower support bar 436 can be separately fixed at by suitable syndeton on upper bracket 41 and lower bracket 42.
Anode assembly provided by the present invention has advantages of that air velocity is high, removal efficiency is high, cost is low, it is simple in structure, conduct electricity very well, installation and maintenance are simple and convenient, long service life, greatly alleviate the steel using amount of conventional support system and anode system, can solve simply and effectively gypsum pollution and dust exceeding emission problem that the coal steam-electric plant smoke discharging faces, have good economic benefit, social benefit and environmental benefit.
Describe with reference to the accompanying drawings the installation method according to thermal power plant's electrostatic precipitator of a specific embodiment of the present invention in detail, described installation method comprises the steps:
The lower bracket 42 of described anode assembly 4 is arranged in described housing 34, by screw 445, alignment pin 443 is arranged on channel-section steel 400 on described lower bracket 42, installation steps and shown in Figure 4 slightly variant herein, namely alignment pin 443 is arranged on lower bracket 42, rather than to that indicated in the drawings being arranged at like that on upper bracket 41, be for the ease of installing from the bottom up like this.Then, the vertical supporting rod 44 of described anode assembly 4 is installed on described alignment pin 443, and with the installation site of the draw-in groove 441 aligned fibers clothes 43 on described vertical supporting rod 44.Afterwards, the upper bracket 41 position correspondences of described anode assembly 4 are arranged at the top aligning of described vertical supporting rod 44, by set bolt 444, described vertical supporting rod 44 is connected on described upper bracket 41, same, installation steps are also that the position of set bolt 444 shown in Figure 4 is inverted herein; The upper support bar 435 that supports described fiber cloth 43 is set at described upper bracket 41 downsides.
Next step is card rope 431 to be passed the rope sling 432 of described fiber cloth 43, further make card rope 431 pass the draw-in groove 441 of described vertical supporting rod 44, then pull described fiber cloth 43 along described card rope 431, described fiber cloth 43 both sides are firmly snapped onto in described draw-in groove 441.
Then, make the upper end of described fiber cloth 44 walk around described upper support bar 435, and fixing by buckle 437; Upside in described lower bracket 42 arranges the lower support bar 436 that supports described fiber cloth 43; Make the lower end of described fiber cloth 43 walk around described lower support bar 436 and strain described fiber cloth 43, then fixing by buckle 437.
The described cathode assembly 5 of a perforation is set in each square hole 40 that described fiber cloth 43 is separated at last.Described anode assembly 4 is connected with the earth, makes the negative pole conducting of described cathode assembly 5 and constant-current supply.
In a specific embodiment, described installation method further comprises the steps, after being arranged at described cathode assembly 5 in described anode assembly 4, the upper end of described cathode assembly 5 is fixed, the 2-3 circle is twisted around its axis in the lower end, makes described cathode assembly 5 twist into spirality.
The above only is the schematic specific embodiment of the present invention, is not to limit scope of the present invention.Any those skilled in the art, the equivalent variations of doing under the prerequisite that does not break away from design of the present invention and principle, modification and combination all should belong to the scope of protection of the invention.
Claims (9)
1. thermal power plant's electrostatic precipitator, being used for the desulfurization fume gypsum particle of thermal power plant and the static of ultrafine dust removes, described thermal power plant electrostatic precipitator has a housing, anode assembly and cathode assembly for electrostatic precipitation are installed in described housing, it is characterized in that, described anode assembly is square, be arranged in the described housing that is square equally, the fiber cloth that described anode assembly is made by fire-retardant polymerization terylene is separated into the honeycomb with a plurality of square holes, each described square hole communicates up and down, be furnished with the described cathode assembly of a perforation in each square hole, described anode assembly infiltrates by current and possesses conductive capability, and be connected with the earth, the negative pole conducting of described cathode assembly and constant-current supply, described anode assembly has by square steel and is welded into the upper bracket of groined type shape and the lower bracket that channel-section steel is welded into the groined type shape, is formed with the square hole of a plurality of up and down correspondence between the square steel of described upper bracket and the channel-section steel of lower bracket, between described upper bracket and described lower bracket, position along described square steel and channel-section steel place, form honeycomb by fiber cloth around described square hole, the square steel of described upper bracket forms the water channel of perforation, and the bottom even of described water channel is distributed with the water injection hole that makes described fiber cloth infiltrate conduction.
2. thermal power plant according to claim 1 electrostatic precipitator, it is characterized in that, each square steel between described upper bracket and described lower bracket and the binding site of channel-section steel, be provided with a vertical supporting rod that supports described fiber cloth, described vertical supporting rod is evenly distributed with four draw-in grooves along its length direction, the both sides of described fiber cloth are stuck in the draw-in groove of two corresponding vertical supporting rods, and described vertical supporting rod is made by glass fibre.
3. thermal power plant according to claim 2 electrostatic precipitator, is characterized in that, the both sides of described fiber cloth are provided with a card rope, and described fiber cloth is stuck in described draw-in groove by described card rope is passed described draw-in groove.
4. thermal power plant according to claim 3 electrostatic precipitator, it is characterized in that, the inside dimensions of described draw-in groove is greater than opening size, the both sides of described fiber cloth are sewed with the rope sling that passes freely through for described card rope, the diameter of described card rope is greater than the opening size of described draw-in groove, and the diameter after the described rope sling of described card rope parcel is less than the inside dimensions of described draw-in groove.
5. one of according to claim 1-3 described thermal power plant electrostatic precipitators, it is characterized in that, the wire that described cathode assembly is wrapped in described discharge sheet by the discharge sheet that forms of casting with when casting forms, the both sides of the edge of described discharge sheet have a plurality of continuous prickle teeth, described prickle tooth forms by the semi-circular portion of excising along the edge punching press of described discharge sheet, the diameter of described semi-circular portion is 50-55mm, and the Breadth Maximum W of described discharge sheet is 100-120mm.
6. thermal power plant according to claim 5 electrostatic precipitator, is characterized in that, described wire is that diameter is the stainless steel wire of 2-3mm, and described discharge sheet is made by lead-antimony alloy.
7. according to claim 5 or 6 described thermal power plant electrostatic precipitators, is characterized in that, the surface that the part of described discharge sheet is exposed at described wire two ends also is enclosed with one deck lead-antimony alloy.
8. the installation method of thermal power plant as described in one of a claim 1-7 electrostatic precipitator, is characterized in that, described installation method comprises the steps:
The lower bracket of described anode assembly is arranged in described housing, by screw, alignment pin is arranged on channel-section steel on described lower bracket;
The vertical supporting rod of described anode assembly is installed on described alignment pin, and with the installation site of the draw-in groove aligned fibers cloth on described vertical supporting rod;
The top that the upper bracket position correspondence of described anode assembly is arranged at described vertical supporting rod is aimed at, and by set bolt, described vertical supporting rod is connected on described upper bracket; The upper support bar that supports described fiber cloth is set at described upper bracket downside;
Card rope is passed the rope sling of described fiber cloth, card is restricted pass the draw-in groove of described vertical supporting rod, then pull described fiber cloth along described card rope, described fiber cloth both sides are firmly snapped onto in described draw-in groove;
Make the upper end of described fiber cloth walk around described upper support bar, and fixed by snap; Upside in described lower bracket arranges the lower support bar that supports described fiber cloth; Make the lower end of described fiber cloth walk around described lower support bar and strain described fiber cloth, then fixed by snap;
The described cathode assembly of a perforation is set in each square hole that described fiber cloth is separated into;
Described anode assembly is connected with the earth, makes the negative pole conducting of described cathode assembly and constant-current supply.
9. installation method as claimed in claim 8, further comprise the steps, after being arranged at described cathode assembly in described anode assembly, the upper end of described cathode assembly fixed, and the 2-3 circle is twisted around its axis in the lower end, makes described cathode assembly twist into spirality.
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| CN103405984A (en) * | 2013-08-15 | 2013-11-27 | 褚圣锋 | High temperature oil smoke purifier |
| CN104096637A (en) * | 2014-07-14 | 2014-10-15 | 双盾环境科技有限公司 | Strip cathode wire for electrostatic dust collector |
| CN104190544A (en) * | 2014-09-17 | 2014-12-10 | 上海交通大学 | Dismountable smoke wet type electrostatic dust and fog removing device and application |
| CN104941805A (en) * | 2015-06-12 | 2015-09-30 | 中国能源建设集团湖南火电建设有限公司 | Wet electric precipitation system mounting method |
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| CN103405984A (en) * | 2013-08-15 | 2013-11-27 | 褚圣锋 | High temperature oil smoke purifier |
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| CN106902986A (en) * | 2017-03-10 | 2017-06-30 | 中国电建集团河南工程公司 | The installation method of electric precipitator pole plate |
| CN107520051A (en) * | 2017-07-25 | 2017-12-29 | 山东神华山大能源环境有限公司 | Wet static dedusting flexible fiber fabric, dust collecting pole plate and wet cottrell |
| CN107520051B (en) * | 2017-07-25 | 2019-07-16 | 国家能源投资集团有限责任公司 | Wet static dedusting flexible fiber fabric, dust collecting pole plate and wet cottrell |
| CN111375491A (en) * | 2018-12-28 | 2020-07-07 | 翰昂汽车零部件有限公司 | Electrification device and electric dust collection equipment comprising same |
| CN112871454A (en) * | 2021-01-04 | 2021-06-01 | 中国神华能源股份有限公司国华电力分公司 | Cathode and anode installation method of electric dust collector |
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